How to Clean an Injection Mold Inside the Machine

Keeping your injection molds clean is important for maintaining part quality and the life span of the mold. Here is how to clean them while they're still in the machine.
#RJG #moldsmart #injectionmolding #howto #plastic #manufacturing

[@LesKlarsTrainProject]

One comment, Spaying mold cleaner directly on the mold surface is OK for simple tools, but slides, cores, or other moving parts should have grease on the wear plates. Mold cleaner will break down this grease. Spray the cleaner onto a rag and wipe the mold. This prevents someone from putting too much cleaner on the surfaces and diluting the grease from moving components. Also, sometimes it is good to run the ejector pins forward and wipe them. Especially if they are vented or are RJG sensor pins. This keeps them functioning correctly and removes any residue that may deposit on them. Good video to share with the technicians on the shop floor.

[@rjg]

Thank you for the input, Les!

[@christiancasaday9211]

this video was very informative , didnt know that you had to grease the leader pins . Could you use alchol for an alternative cleaning solution for the mold .

[@rjg]

We're so glad you found it helpful! You can use alcohol. The best is to use 80% or higher. Mold cleaner is another option. 🙂

[@craig24577]

I've always liked Mold Wipes.

[@sanketkahani731]

Your English voice is very well

[@user-ds8pe7xn7z]

I'm a big fan of the videos, and you folks are doing a great job. I was wondering if maybe you could cover splay in a video? It's something I struggle with a bit, having not had to deal with it much in injection, stretch, blow molding, but I'm having to calibrate to it working in a strictly injection capacity now.

[@rjg]

Thank you so much for watching and for the suggestion! We will add it to our list! :)

[@joshbowen4128]

What kind of clamps are on this mold?

[@rjg]

Hi Josh, we bought them from PPE, Plastics Processing Equipment. 🙂

[@vigoinjectionplastic1091]

Important thing is cleaning person ready know the tool function design & what chemical to be use.

[@Xcruciatingpain]

I don't agree with this video as breaking down the grease internally with such cleaners can lead to galling and other issues. WE always spray a rag and gently clean the surface per instruction from tooling department. If you need to directly spray the tool for a clean it's probably best to get a full PM in. Something else that works nicely when doing a quick clean are dry ice blasters. No residue, quick, and very clean. Overall good to see new videos.

[@rjg]

Great input, James. Thank you! We're so happy you enjoy our videos! :)

[@deanundiks8844]

I as well do not like the idea of spraying the mold cleaner directly into the mold. We even go as far as to use a paper towel because our tool room uses the same rags and may have metal chips in the that could scratch the surface of the mold. If you spray mold cleaner directly into the mold you may have residue bleeding out from around the inserts for hours and the mold may have to come out to be taken apart to be cleaned. Also no mention of to be extremely carful of all the sharp edges inside of a mold that may cut you.

[@rjg]

Hi Dean, you are right. In some circumstances, it's better to not spray it directly on the mold. And yes, safety is always key. Thank you for your feedback!

[@jasonwilliams1370]

We call them cams. Never heard of a slide.